Home / 21,503.95-29,675.36-12,072.51

Finding the Fourth Proportional to 21,503.95, 29,675.36 and 12,072.51

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Solution

The fourth proportional to 21,503.95, 29,675.36 and 12,072.51 is: 16,660.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.95 : 29,675.36 = 12,072.51 : x
  2. Step 2: Convert to fraction form
    21,503.95/29,675.36 = 12,072.51/x
  3. Step 3: Cross multiply
    21,503.95x = 29,675.36 × 12,072.51
  4. Step 4: Simplify right side
    21,503.95x = 358,256,110.53
  5. Step 5: Solve for x
    x = 358,256,110.53/21,503.95
  6. Step 6: Final answer
    x = 16,660.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.